Question

what is a chromosome? how many are in your body and sex cells? and how many pairs? please hellpp

Answer 1

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.It is a structure of DNA, protein, and RNA found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences

The term chromosome comes from the Greek words for color (chroma) and body (soma). Scientists gave this name to chromosomes because they are cell structures, or bodies, that are strongly stained by some colorful dyes used in research.

the "normal" number of 46 chromosomes is the DIPLOID number, not the haploid. In egg and sperm cells, half the number is present, and this is known as the haploid number.

In some individuals, the diploid number is off; this is known as either a monosomy (only one of the usual pair is present), or a trisomy (3 copies, instead of two). The most well-known trisomy is Trisomy 21--3 copies of the 21st pair, otherwise known as Down Syndrome. This is not always obvious simply from counting chromosomes in a karyotype, as the extra material can be attached to another chromosome. Extra/missing X or Y chromosomes are other common genetic mistakes.

Answer 2

hope this helped

Answer 3

oh trust me it did :) thanks

Answer 4

always happy to help

Answer 5

fell free too be a fan